Fibrous bodied container



Patented July 9, 1935 PATENT OFFl FIBROUS BODIED CONTAINER Walter L.Rutkowski, Normandy, Mo., assignor to R. 0. Can Company, St. Louis, Mo.,a corporation of Missouri ApplicationJune 8,1933, Serial N0. 674,783

4 Claims.

This invention relates to containers with, or without one fixed endclosure.

An object of the invention is to provide one, or

both ends of the tubular fibrous body of a container with an internalreinforcing band to support the end, or ends of the container bodyagainst shrinkage, thus maintaining the outside diameter of'the bodyend, or ends to prevent slip covers from becoming loose thereonafter-being applied thereto.

A further object of the invention is to support the band in position byfrictionally embracing engagement thereof with the inner wall of thecontainer body.

A further objecirof the invention resides in inwardly fianging of theband at the end, or ends thereof.

A further object of the invention resides in inwardly fianging the endof the fibrous container body for embracing engagement with the outerend of the internal reinforcing band.

A still further object of the invention is the rounding of the outeredge of the inwardly extending fibrous body flange to facilitate theapplication of a slip cover to the end of the container provided withthe internal reinforcing band.

A still further object offthe invention is the squeezing of the materialof the fibrous body end, or ends from the outside after the band has 7been applied thereto to correct variations in body material thicknessand to insure a uniform outside diameter for the end, or ends of the canbody so as to insure the tight fit of a slip cover applied to suchend,.lor ends of the container body.

A still further object of the invention is the provision of a containerwhich possesses advantages in points of simplicity and efficiency, and,at the same time proves itself comparatively inexpensive in cost ofmanufacture.

With the above and other objects in view, as will be apparenthereinafter, the invention consists in the novel arrangement andcombination of parts hereinafter more fully described and finallypointed out in the claims hereto appended.

Referring to the accompanying drawings forming a part of thisspecification, wherein like characters of reference denote similar partsthroughout the several views:

Fig. 1 is an elevation View of a fibrous bodied container embodying oneform of my invention, parts being broken away and parts being shown insection.

Fig. 2 is a detailed sectional view of one end of a fibrous containerbody embodying the invention with the closure therefor removed.

Fig. 3 is a top plan view of the container with the top closure removed.

Fig. 4 is a perspective View of the internal reinforcing friction band.v

Fig. 5 is an enlarged fragmentary sectional view of the friction band inposition within the container body before the end of flanged.

Fig. 6 is an elevation view withparts broken away and parts in sectionclearly showing the position of the reinforcing band prior to the end ofthe fibrous container body being flanged inwardly to overlie the outeredge of the internal reinforcing band.

Fig. 7 is a detail elevation and sectional view of a containerillustrating a slip cover as being appliedto the end of the container.

Fig. 8 is an enlarged fragmentary sectional view of a modifiedform ofreinforcing band.

Fig. 9 is a modification of the invention, the band being shown asapplied to the container body in reversed relation to that shown in Fig.1.

Fig, 10 is a perspective view of the modified band shown in Fig. 9.

Fig. 11 is a view illustrating the modified band shown in Figs. 9 and 10in position within a fibrous container body before the end of thecontainer body is inwardly flanged.

Fig. 12 is a view illustrating the modified band shown in Fig. 10 asbeing forced into position from the same end of the body to which it isapplied.

Fig. 13 is a further modification of the reinforcing band as applied tothe end of a fibrous container body.

Fig. 14 is a further modification of the reinforcing band as applied tothe end of a fibrous container body and also illustrates a modified bodyend.

Fig. 15 illustrates a modification of the modification shown in Fig. 14.

Fig. 16 is a still further modification of the invention, the band shownas applied to the container body and being provided with an inwardlyextending flange at both the inner and outer' ends thereof.-

By reference to the drawings, it will be observed that I employ atubular fibrous container body, designated I. This body may be of anydesired wall thickness, any desired shape in end elevation and of anydesired capacity. While I have shown the body I as oval, or elliptical,it is apparent that it may be round, square, triangular,

the body is inwardly such for instance as oblong, diamond shape, or ofany shape desired in end elevation. I have also shown in Fig. l, thecontainer body as provided at one end with a fixed closure 2, but it isapparent that any other type 'of closure may be used for said end, aclosure which will now be described for the opposite end of thecontainer body.

In carrying out the aim of my invention, I employ a suitable internalreinforcing band, and such a band, or bands, is forced into the end, orends of the container body for frictional embracing engagement with theinner wall thereof.

As shown in Figs. 1 to '7, inclusive, one embodiment of the inventionresides in employing a band designated 3, preferably, although notnecessarily metallic, and the outer end of the band as positioned in thebody I, is provided with a narrow inwardly extending flange 4 having its'outer edge rounded, or outwardly curved, as at 5, and the flange beingdisposed at less than a right angle to the wall of the band 3. However,as shown in Fig. 8, the flange designated 4' may be at a right angle tothe band wall 3 and with the outer edge of the flange rounded, or notrounded, as desired.

The band is positioned within the end of the container body I by forcingit through the body from the opposite end to that where it is to befinally located, as indicated by the arrow in Fig. 6.

The inwardly extending flange 4 of the band 3 is disposed a suitabledistance back from the end of the body I to provide a short fibrous bodyextension 6 beyond the flange of the band, as clearly shown in Fig. 6.After the band 3 has been properly positioned within the end of the bodyI, as shown in Fig. 6, the fibrous body extension 6 of the body Iextending beyond the flange 4 of the band 3, is forced inwardly toprovide an inwardly extending body flange I of iibrous material forembracing engagement with the outer faceof the band flange 4, as clearlyshown in Figs. 1, 2, 3, 5, 7 and 8, thus the fibrous body flange willserve as a gasket for the outer flanged face of the band.

The outer edge of the fibrous body flange 1 is rounded off, or curvedoutwardly, as at 8, to facilitate the positioning of a slip cover 9 onsuch end of the container body due to the fact that there are no roughouter edges for the skirt edge III of the slip cover 9 to come intocontact with, and such a construction of can end assures of a perfecttight fit of the slip cover on the end of the container body I evenafter the can has stood over a long period of time after having beenpacked with contents, such as powder, spices and like dry products.

It will be observed that the wall of the fibrous container body I notonly acts as a gasket between the band wall and the skirt of the slipcover, but, that the fibrous inwardly directed flange I on the end ofthe container body acts as a gasket between the inwardly extendingflange 4 on the band 3 and the top of the slip cover 9 adjacent theskirt thereof, thus serving to provide a tight joint both between theskirt of the slip cover and the body wall and the end of the containerbody and the closure top, due to the inner corner of the slip coverconforming in contour or shape to that of the outer flange edge of thecontainer body I. The fibrous body flange I serves also to eliminaterough edges at the end of the body I, as the metal band is not outwardlyexposed, even when the slip cover is removed.

To insure a uniform wall thickness of the body material between the bandand slip cover skirt, the material issqueezed after the band has beenpositioned, and'simultaneously with the squeezing of the body end thebody flange 1 is formed and the outer edge 8 thereof rounded. This canbe done either hot or cold. The inward body flange 1 serves also toprevent outward displacement of the reinforcing band 3 and inwarddisplacement thereof is prevented by the sharp lower outer edge 9 of theband, due to frictional embracing engagement of the band with the bodywall.

The ring equipped body end of the container is squeezed from the outsideinwardly with suitable means designed for the purpose and the squeezedend portion of the body, as clearly shown, is designated a.

In the modification of the invention illustrated in Figs. 9 to 12, Ihave shown the internal reinforcing band 3 as used in a reverse relationto that shown in Figs. 1 to 8, inclusive. The inwardly extending flangeon the wall of the reinforcing band 3 is formed at the inner end of theband, instead of at the outerend thereof, and

the flange is designated 4. The inwardly extending fibrous flange at theend of the wall of the container body I instead of being in embracingengagement with an outer flange 4 of the band 3, as shown in Fig. 1, isin embracing engagement with the outer end face II of the reinforcingband 3. Any type of slip cover can be applied to the reinforced end ofthis modified form of container and the fibrous body flange designated Ibody flange I shown in Fig. 1, excepting the width of the modifiedflange is less than shown in Fig. 1. The outer edge of the fibrousbodyflange I in Fig. 9 is rounded or curved outwardly and is designated 8,as in Fig. 1.

The modified internal reinforcing band is clearly shown in Fig. 10, andin Fig. 11 the band is shown in position within a fibrous container bodyend before the body end is flanged inwardly, and, in Fig. 12, thecontainer body is shown as inverted and positioned over the reinforcingband so that the same can be forced into position within the same end ofthe body that receives the band.

In a further modified form of the invention 9 shown in Fig. 13, I haveshown the use of an internal reinforcing band 3 which is minus aninwardly extending flange at both ends of the band, but the end of thecontainer body is inwardly flanged as at edge rounded or curvedoutwardly as at 8, as in Fig. 9. The body flange in Fig. 13 is shown asthe same width as that shown in Fig. 9, which is only sufficient tooverlie and embracingly engage the outer edge of the reinforcing band.

In a further modification of the invention as illustrated in Fig. 14, Iemploy the use of the non-flanged reinforcing band shown in Fig. 13. Inthis modified form of container, I eliminate the use of the inwardly 1'shown in Fig. 13 and instead of positioning the band with its outer edgebelow the end face of the container body, I position the outer edge ofthe band 3 flush with, or in a plane with the end of the wall of thecontainer body I. In

lieu of rounding off or outwardly curving an outer edge of a body flangein this modified form of container, I merely shrink the outer edge ofthe body end to provide a rounded or outwardly curved edge designated8'. The band is held 7 will serve the same purpose as the I and also hasits outer 5 extending body flange from displacement both by being forcedinto the fibrous container body and held in frictional embracingengagement with the inner wall of the fibrous container body and by theemployment of outwardly directed indentations l2- slightly penetratingthe innerwall of the container body.

.The modification of the invention shown in Fig. 15 is exactly like themodification shown in Fig. 14, except that I eliminate the reinforcingband indentations l2 and depend entirely upon the frictional embracingengagement of a. non-indented bandwall with the inner wall of thecontainer body. The outer edge of the band equipped end of the containerbody shown in Fig. 15, is round. as 8', the same as in Fig. 14.

In a further modification shown in Fig. 16, I have illustrated the useof the reinforcing band 3 provided at its outer end with the inwardlyextending flange 4', as shown in Fig. 1, and at its inner end with'aninwardly extending flange 4 as shown in Fig. 9.

The band illustrated in Figs. 9 to 12, 13, 14, 15 and 16 can be forcedinto the container body from the end to which it is applied due to thenatural taper of the band wall which, of course, is very slight and onlyamounts to that required in the dies for forming the reinforcing hands.This taper is, of course, suflicient to cause the reinforcing band to beforced very tightly into position within the end of the container bodyand insure a. very material frictional embracing engagement of thereinforcing band with the wall of the container body even when the extraembracing engagement of bandindentations shown in Fig. 14 areeliminated.The band indentations render some additional band surface engagementwith the inner wall of the container body, but their use is notabsolutely necessary for the results desired, but may, or may not beused as a precaution in large bodied container construction.

I may mention that the internal reinforcing band may be formed of'sheetmetal of any desirable gauge, or it may beformed of suitable fibrousmaterial.

The many advantages of the herein described invention will readilysuggest themselvesto those skilled inthe art to which it appertains.

From the foregoing description, it is evident, that a simple device forthis purpose-has been disclosed, but it is to be understood that I donotdesire to restrict, or limit myself to the very details of theconstruction shown and described,

which is merely illustrative, it being obvious that changes, notinvolving the exercise of invention, may be made without conflicting ordeparting from the spirit of the invention within the scope of theappended claims.

What I claim is:

1. In a. container, a body of fibrous material, an internal ring seatedwithin the removable closure receiving end of the body and a permanentinwardly extending flange formed by squeezing the body material at theremovable closure receiving end. of the container body to preventremoval of the 2. A container having, incombination, a fibrous containerbody having an open end, a. metallic ring seated within the open end ofthe body and positioned with its outer end disposed a short distancebelow the edge of the open end of the body and the material of the openend of the body being squeezed to provide a permanent inwardly extendingflange seated on the outer end face of the internal ring to providearounded outer corner edge at the open end of the container body tofacilitate the positioning of a, closure on the open end'of thecontainer body.

3. In a container, a body of fibrous material, a permanent closure atone end of the body, a reinforcing member open at both ends seatedwithin the opposite end of the container body, and a permanent inwardlyextending flange formed by squeezing the container body materialadjacent the outer end of the reinforcing member to overlie and seatupon the outer end face of the reinforcing member to prevent removalthere- 'end of thereinforcing member to overlieand seat upon the outerend face of the reinforcing member to prevent removal thereof and' toprovide a rounded outer edge for said end of the container body tofacilitate applying a slip closure to said reinforced end of'thecontainer body.

WALTER L. RUTKOWSKI.

